Telescopic article.



W. J. DUNN.

TELESGOPIC ARTICLE.

APPLICATION FILED DEC. 4, 1908.

Patented Dec. 7, 1909.

Witnesses: 2

' f I WILLIAM JOHN DUN N, MONTREAL, QUEBEC, CANADA.

' 'TELESCOPIG Aivrrcme.

specification of Letters Patent.

s Application filed December 4, 1808. Serial No.'468,040.'

To all whom it may concern:

Be it known that, I, WILLIAM JOHN DUNN, a subject of the King ofEngland, residing at the city of Montreal, in the Province of Quebec,Canada, have made a certain new and useful Improvement in TelescopicArticles, of which the following is a specification,

My invention relates to telescopic articles, such as tent poles,handles, rods, etc.

The object of my invention is to provide an article comprising aplurality of telescoping sections, with means for locking the.

sections against longitudinal movement; to

provide means for strengthening the arti-- cle at its joints, whichstrengthening means also serves to cover the locking means; and,

to provide means for preventing axial movement of the sections, at thesame time permittin free longitudinal movement thereof when t e sectionsare unlocked.

A further object is to provide a slmple "means for closing the upper endof the uppermost section when the article is designed or use as a tentpole.- I

My invention consists of the construction, combination and arrangementof parts, as herein illustrated, described, and claimed.

In the accompanying drawin s, forming part of this application, I have ilustrated a form of embodiment of my invention in which drawings similarreference characters designate corresponding parts, and in which:

re. 1 is an elevation partlyfin section,

showing a section extended; and, Fig. 2

shows a section on line 2-2 of Fig. 1.

Referring to the drawin s, 1 designates a plurality of tapered, tubulartelescopic sections, in the end of one of which is disposed a block 2carrying a spur 3. The pin 4 is disposed through the block and spur andthrough the wall of the section 1 leaving a slight projecting end toserve as a stop for the ferrules hereafter described.

Disposed in the lower end of each of the sections 1 is a block 5provided with a recess 6. The spring pressed plunger 7 is disosed in therecess and is arranged to work into an o ening 8 provided in each of theupper en s of the sections 1, so that when the sections T are e xtendedthe will, be

is a ferrule 9 provided with a lower splayed edge 10. When the sections1 are extended and locked the ferrules 9 are forced intoposition wherethe form a strengthening-band for the joints ormed between the ends ofthe sections 1 and at the same time they cover the locking means andprevent the ingress of dirt etc. When the sections 1 are closed ortelescoped into each other the projecting end of the pin 4,.prevents'the ferrule 9 from being displaced entirely from the article.

To prevent axial movement.of the sections 1 with relation to each otherso that the plungers 7 always register with the openings 8, and toprevent 'bindin each of the sections 1 is provided with'a ongitudinalrib 11, the ribs in each succeeding section fitting closely into the ribof each preceding sectlon.

Patented Dec. 7-, i909.

a spring pressed plunger in each of said recesses arranged to work inopenings provided in the ends of the sections and fer-rules disposed onthe sections and provided with splayed ends arranged to work .over theplungers. v 2. A telescopic article comprising a plurality oflongitudinally movable sectlons provided with recesses, a plungeradapted to work in each of said recesses, ferrules disposed on thesections and provided with splayed ends adapted to work over theplungers, and means for preventing axial movement of the sections.

3. A telescopic article comprising a plurality of movable sectionsrovided with longitudinal ribs, each of sai sections having a recess inone end thereof, a spring pressed plunger in each recess, and ferrulesmounted on the sections and provided with splayed ends arranged to 'workover the 4. A telescopic article comprising a pluwith splayed ends tocoverthe p1ungers,subrality of sections provided with ribs adaptedstantialiy as described. 10 to prevent axial movement of the sections,Inwitness whereof I have hereunto set my each of said sections having arecess in one hand in the presence of two witnesses.

5 end thereof, asp ring pressed plunger in each WILLIAM JOHN DUNN. ofsaid recesses arranged to work in openings 1 Witnesses:

provided in the ends of the sections, and fer- STUART R. W. ALLEN,

7 rules mounted on the sections and provided E. R. MCKENZIE.

